/*
 * Copyright 1999-2017 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package studio.raptor.sqlparser.ast.statement;

import java.util.ArrayList;
import java.util.List;
import studio.raptor.sqlparser.ast.SQLName;
import studio.raptor.sqlparser.ast.SQLObjectImpl;
import studio.raptor.sqlparser.ast.expr.SQLIdentifierExpr;
import studio.raptor.sqlparser.visitor.SQLASTVisitor;

public class SQLWithSubqueryClause extends SQLObjectImpl {

  private final List<Entry> entries = new ArrayList<Entry>();
  private Boolean recursive;

  public List<Entry> getEntries() {
    return entries;
  }

  public void addEntry(Entry entrie) {
    if (entrie != null) {
      entrie.setParent(this);
    }
    this.entries.add(entrie);
  }

  public Boolean getRecursive() {
    return recursive;
  }

  public void setRecursive(Boolean recursive) {
    this.recursive = recursive;
  }

  @Override
  protected void accept0(SQLASTVisitor visitor) {
    if (visitor.visit(this)) {
      acceptChild(visitor, entries);
    }
    visitor.endVisit(this);
  }

  public static class Entry extends SQLObjectImpl {

    protected final List<SQLName> columns = new ArrayList<SQLName>();
    protected SQLIdentifierExpr name;
    protected SQLSelect subQuery;

    @Override
    protected void accept0(SQLASTVisitor visitor) {
      if (visitor.visit(this)) {
        acceptChild(visitor, name);
        acceptChild(visitor, columns);
        acceptChild(visitor, subQuery);
      }
      visitor.endVisit(this);
    }

    public SQLIdentifierExpr getName() {
      return name;
    }

    public void setName(SQLIdentifierExpr name) {
      this.name = name;
    }

    public SQLSelect getSubQuery() {
      return subQuery;
    }

    public void setSubQuery(SQLSelect subQuery) {
      this.subQuery = subQuery;
    }

    public List<SQLName> getColumns() {
      return columns;
    }

  }
}
